*I have read everything*
I have been in eBay and Amazon business since last couple of years and I have sound experience in both marketplaces. Ready to work with you.
1A: Example. I am controlling both the marketplaces through their web services where we have full options available for listing, order, and inventory management.
1B: Example. The web services provides us with parent child relation-ship data so we can use it to bind them with each other.